The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Jun. 28, 2007
Satoshi Murouchi, Kanagawa, JP;
Toshio Nakayama, Kanagawa, JP;
Satoshi Murouchi, Kanagawa, JP;
Toshio Nakayama, Kanagawa, JP;
Nippon Oil Corporation, Kanagawa, JP;
Abstract
A wholly aromatic liquid crystal polyester resin composition for injection molding, formed by melt-kneading 100 parts by mass of a wholly aromatic liquid crystal polyester resin, and 5 to 20 parts by mass of glass fibers having a number average diameter of 5 to 20 μm and an aspect ratio of 5 or more, the wholly aromatic liquid crystal polyester resin being formed by polycondensation of 60 to 70 mol % of p-hydroxybenzoic acid, 40 to 30 mol % of terephthalic acid and 4,4'-dihydroxydiphenyl combined, and 0 to 5 mol % of isophthalic acid and/or terephthalic acid (for all of these, derivatives thereof are included, and the total of these is 100 mol %). This composition has excellent damping properties, and is suitable for a molding material of an optical pickup lens holder for short type pickups for use in high-speed DVD systems and playback pickups for use in Blu-ray systems.